mail.het.net.je has no MX records.
Question and response
Question
dig mail.het.net.je. MX
Answer
The response has no answer records.
Authority
het.net.je. 300 SOA ns1.het.net.je. wim.biemolt.com. 2014011032 28800 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0